CN110792582A - Peristaltic pump for low-pulse scene - Google Patents
Peristaltic pump for low-pulse scene Download PDFInfo
- Publication number
- CN110792582A CN110792582A CN201911076356.2A CN201911076356A CN110792582A CN 110792582 A CN110792582 A CN 110792582A CN 201911076356 A CN201911076356 A CN 201911076356A CN 110792582 A CN110792582 A CN 110792582A
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- China
- Prior art keywords
- compensation
- hose
- wall
- bag
- peristaltic pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of fluid pumps and discloses a peristaltic pump for a low-pulse scene. This a peristaltic pump for low pulse scene, when the compression roller begins to loosen the hose, compensate through compensating wall drive compensation bag water outlet end water pressure, effectively reduce pulse amplitude, secondly compare under the condition that current compression roller is more in quantity, actuating arm pivoted resistance is littleer, reduce the operation power consumption, the length is also shorter when the wearing and tearing of hose simultaneously, the life of hose has been improved, effort between compression roller and the hose is less in addition, the atress inhomogeneity of its pivot is less relatively, simultaneously, because the compensation bag of not arranging the one side of hose and addding, the effort between compensation wall and the compensation bag is favorable to the atress of pivot even, the life of pivot has further been improved.
Description
Technical Field
The invention relates to the technical field of fluid pumps, in particular to a peristaltic pump for a low-pulse scene.
Background
Referring to fig. 5, the pressure rollers of the peristaltic pump stop delivering liquid at the moment of loosening, so that pulse flow is generated, and the use of the peristaltic pump is limited, in order to suppress and reduce pulsation, the number of the pressure rollers is increased by a common means, on one hand, the closed liquid volume is reduced, and the pumping flow rate of the peristaltic pump is reduced, and on the other hand, as each pressure roller and the hose need a certain pressure, the more the number of the pressure rollers is, the larger the friction force generated by rotation of the driver is, the more energy consumption is increased, and meanwhile, the number of times of compression of the hose is increased, the material fatigue is accelerated, and the service life of the hose is reduced.
Furthermore, the number of the press rollers is large, the total acting force between the press rollers and the hoses is large, the hoses are usually distributed on one side, the acting force generated on the rotating shaft of the driver is also deviated to one side, the abrasion nonuniformity of the rotating shaft is increased, and the service life of the rotating shaft is shortened.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a technical scheme of a peristaltic pump for a low-pulse scene, which has the advantages of low pulse and high efficiency and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides a peristaltic pump for low pulse scene, includes the pump body and hose, the inner wall of the pump body is equipped with the hose, the middle part of the pump body is equipped with actuating arm and compensation wall, the terminal fixed mounting of compensation wall has the compression roller, one side that the pump body was not equipped with the hose is equipped with the compensation bag, the end of intaking of compensation bag and the end of intaking and the play water end intercommunication of play water end and hose, the end of intaking of compensation bag and play water end all are equipped with the check valve and ensure the flow direction, the compensation wall begins to extrude the reduction of the play water end water pressure of compensation bag compensation hose in the twinkling of an eye at the compression roller uncla.
Preferably, actuating arm and compensation wall are the contained angle setting, the contained angle of actuating arm and compensation wall satisfies when the extrusion force between compression roller and the hose reduces the compensation wall and begin to extrude the compensation bag, the compensation bag size satisfies when the extrusion force between another compression roller and the hose is the biggest, stops the effect between compensation wall and the compensation bag.
Preferably, the compensation wall presses the compensation capsule through magnetic force, magnets which are in the form of repulsive force are respectively arranged at the positions where the compensation wall and the compensation capsule are close to each other, and driving pieces are arranged on the surface of the compensation capsule.
Preferably, the water outlet ends of the hose and the compensation bag are both communicated with the buffer tank.
Preferably, one side of the compensation bag is movably provided with an adjusting bolt.
The invention has the following beneficial effects:
1. this a peristaltic pump for low pulse scene, when the compression roller begins to loosen the hose, through compensating wall drive compensation bag water outlet end water pressure compensate, do not increase effective reduction pulse amplitude under extra compression roller and the extra load condition, secondly under keeping the state that the compression roller quantity is less, confined liquid volume is great, the output of peristaltic pump is great, on the other hand, compare under the more condition of current compression roller quantity, actuating arm pivoted resistance is littleer, reduce the operation power consumption, the length of time is also shorter when the wearing and tearing of hose simultaneously, the life of hose has been improved.
2. This a peristaltic pump for low pulse scene, on the one hand, the effort between compression roller and the hose is less, and the atress inhomogeneity of its pivot is less relatively, simultaneously, because the compensation bag that adds is not arranging one side of hose, the effort between compensation wall and the compensation bag is favorable to the atress of pivot even, has further improved the life of pivot.
Drawings
FIG. 1 is a schematic illustration of the present invention in normal operation;
FIG. 2 is a schematic view illustrating the hydraulic pressure compensation according to the present invention;
FIG. 3 is a schematic view of the present invention after completion of water pressure compensation;
FIG. 4 is a schematic view of a surge tank of the present invention;
fig. 5 is a schematic structural view of a conventional peristaltic pump.
In the figure: 1. a pump body; 2. a hose; 3. a drive arm; 4. a compression roller; 5. a compensation wall; 6. a compensation bladder; 7. a driving plate; 8. a three-way valve; 9. a buffer tank; 10. and adjusting the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a peristaltic pump for a low pulse scene includes a pump body 1 and a hose 2, the hose 2 is disposed on an inner wall of the pump body 1, a driving arm 3 and a compensation wall 5 are disposed in a middle portion of the pump body 1, a pressing roller 4 is fixedly mounted at a tail end of the compensation wall 5, the driving arm 3 drives the pressing roller 4 to move to squeeze the hose 2, a compensation bag 6 is disposed on a side of the pump body 1 where the hose 2 is not disposed, a water inlet end and a water outlet end of the compensation bag 6 are communicated with a water inlet end and a water outlet end of the hose 2, a check valve is disposed at both the water inlet end and the water outlet end of the compensation bag 6 to ensure a flow direction, the compensation wall 5 starts to squeeze the compensation bag 6 at the moment the hose 2 is released by the pressing roller 4 to.
Wherein, actuating arm 3 and compensation wall 5 are the contained angle setting, and the contained angle of actuating arm 3 and compensation wall 5 satisfies compensation wall 5 and begins to extrude compensation bag 6 when the extrusion force between compression roller 4 and the hose 2 reduces, and compensation bag 6 size satisfies when the extrusion force between another compression roller 4 and the hose 2 is the biggest, stops the effect between compensation wall 5 and the compensation bag 6.
The compensation wall 5 extrudes the compensation capsule 6 through magnetic force, magnets which are represented by repulsive force are respectively arranged at the positions where the compensation wall 5 and the compensation capsule 6 are close to each other, a driving sheet 7 is arranged on the surface of the compensation capsule 6, and when the compensation wall 5 is close to each other, the driving sheet 7 is driven to further extrude the compensation capsule 6, so that the service life of the compensation capsule 6 is prolonged while the resistance is reduced in a non-contact manner.
Wherein, the play water end of hose 2 and compensation bag 6 all communicates buffer tank 9, is full of gas in the buffer tank 9, and when pressure was too big, the extrusion is gaseous, but when pressure was little, the gas can compensate water pressure, makes compensation 6 more gentle, further eliminates the pulse, and hose 2 and compensation bag 6's the end of intaking pass through three-way valve 8 and connect.
Wherein, one side of the compensation bag 6 is movably provided with an adjusting bolt 10, and the adjusting bolt 10 is screwed in or out to extrude the compensation bag 6 to control the water quantity in the compensation bag 6 so as to finely adjust the compensation quantity of the compensation bag 6.
The working principle and the using process of the invention are as follows:
when the peristaltic pump runs, the driving arm 3 and the compensation wall 5 keep synchronous rotation, the driving arm 3 rotates to drive the pressing rollers 4 to rotate, the two pressing rollers 4 sequentially extrude the hose 2 to drive the flowing of liquid, when the pressing rollers 4 driving the flowing of the liquid can release the hose 2, the compensation wall 5 and the driving sheet 7 begin to interact, the driving sheet 7 extrudes the compensation bag 6, the liquid flows into the buffer tank 9 from the compensation bag 6 to compensate the outlet water pressure, the driving arm 3 and the compensation wall 5 continue to rotate, the extrusion action of the other pressing roller 4 and the hose 2 reaches the maximum, the acting force between the compensation wall 5 and the driving sheet 7 disappears, and the pulse generated at the action interval of the two pressing rollers 4 is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a peristaltic pump for low pulse scene, includes the pump body (1) and hose (2), the inner wall of the pump body (1) is equipped with hose (2), its characterized in that: the middle part of the pump body (1) is equipped with actuating arm (3) and compensation wall (5), the terminal fixed mounting of compensation wall (5) has compression roller (4), one side that the pump body (1) was not equipped with hose (2) is equipped with compensation bag (6), the end of intaking of compensation bag (6) and the end of intaking and the play water end intercommunication of play water end and hose (2), the end of intaking of compensation bag (6) and play water end all are equipped with the check valve and ensure the flow direction, compensation wall (5) begin to extrude the reduction of the play water end water pressure of compensation bag (6) compensation hose (2) in the twinkling of an eye of hose (2) is loosened in compression roller (4).
2. A peristaltic pump for low pulse scenarios as recited in claim 1, wherein: the pressure-bearing compensation device is characterized in that the driving arm (3) and the compensation wall (5) are arranged at an included angle, the included angle between the driving arm (3) and the compensation wall (5) meets the requirement that the extrusion force between the compression roller (4) and the hose (2) is reduced, the compensation wall (5) starts to extrude the compensation bag (6), the size of the compensation bag (6) meets the requirement that the extrusion force between another compression roller (4) and the hose (2) is maximum, and the compensation wall (5) and the compensation bag (6) are stopped.
3. A peristaltic pump for low pulse scenarios as recited in claim 1, wherein: the compensation wall (5) extrudes the compensation capsule (6) through the action of magnetic force, magnets which are represented as repulsive force are respectively arranged at the positions where the compensation wall (5) and the compensation capsule (6) are close to each other, and a driving sheet (7) is arranged on the surface of the compensation capsule (6).
4. A peristaltic pump for low pulse scenarios as recited in claim 1, wherein: the water outlet ends of the hose (2) and the compensation bag (6) are communicated with a buffer tank (9).
5. A peristaltic pump for low pulse scenarios as recited in claim 1, wherein: one side of the compensation bag (6) is movably provided with an adjusting bolt (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911076356.2A CN110792582B (en) | 2019-11-06 | 2019-11-06 | Peristaltic pump for low-pulse scene |
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CN201911076356.2A CN110792582B (en) | 2019-11-06 | 2019-11-06 | Peristaltic pump for low-pulse scene |
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CN110792582A true CN110792582A (en) | 2020-02-14 |
CN110792582B CN110792582B (en) | 2022-03-18 |
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CN201911076356.2A Active CN110792582B (en) | 2019-11-06 | 2019-11-06 | Peristaltic pump for low-pulse scene |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114856981A (en) * | 2022-07-05 | 2022-08-05 | 保定齐力恒流泵有限公司 | Adjustable combined peristaltic pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213684A1 (en) * | 2003-04-24 | 2004-10-28 | Klein Jeffrey A. | Infiltration pump having insulated rollers and programmable foot pedal |
CN202756211U (en) * | 2012-08-24 | 2013-02-27 | 杨新民 | Low-pulse continuous outputting single roller hose pump |
CN203879717U (en) * | 2014-06-17 | 2014-10-15 | 浙江东瓯诊断产品有限公司 | Alternately-pressing peristaltic pump |
CN105492771A (en) * | 2013-06-06 | 2016-04-13 | 鲍施+施特勒贝尔机械伊尔斯霍芬有限两合公司 | Peristaltic pump having reduced pulsation and use of the peristaltic pump |
CN105864026A (en) * | 2016-05-25 | 2016-08-17 | 厦门建霖工业有限公司 | Built-in low-pulse and low-vibration type pump assembly and water purifier and working method |
CN110360088A (en) * | 2019-07-26 | 2019-10-22 | 重庆杰恒蠕动泵有限公司 | A method of reducing peristaltic pump pulse |
-
2019
- 2019-11-06 CN CN201911076356.2A patent/CN110792582B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213684A1 (en) * | 2003-04-24 | 2004-10-28 | Klein Jeffrey A. | Infiltration pump having insulated rollers and programmable foot pedal |
CN202756211U (en) * | 2012-08-24 | 2013-02-27 | 杨新民 | Low-pulse continuous outputting single roller hose pump |
CN105492771A (en) * | 2013-06-06 | 2016-04-13 | 鲍施+施特勒贝尔机械伊尔斯霍芬有限两合公司 | Peristaltic pump having reduced pulsation and use of the peristaltic pump |
CN203879717U (en) * | 2014-06-17 | 2014-10-15 | 浙江东瓯诊断产品有限公司 | Alternately-pressing peristaltic pump |
CN105864026A (en) * | 2016-05-25 | 2016-08-17 | 厦门建霖工业有限公司 | Built-in low-pulse and low-vibration type pump assembly and water purifier and working method |
CN110360088A (en) * | 2019-07-26 | 2019-10-22 | 重庆杰恒蠕动泵有限公司 | A method of reducing peristaltic pump pulse |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114856981A (en) * | 2022-07-05 | 2022-08-05 | 保定齐力恒流泵有限公司 | Adjustable combined peristaltic pump |
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